Validation of azo removal compounds with activated charcoal from shrimp exoskeleton
DOI:
https://doi.org/10.47808/revistabioagro.v7i2.118Keywords:
shrimp waste, porous material, adsorption, dyesAbstract
Activated carbon (CA) is a porous material, whose main precursors are of vegetable origin. These precursors are composed of carbonaceous structures as cellulose. On the other hand, one of the elemental materials to wastewater treatments is activated carbon, due to, it has been dabbled to use precursors such as rubber and animal waste in order to produce activated carbon. The shrimp exoskeleton is a waste generated in coastal areas and it has significant amounts of chitin. Chitin is a compound considerate the most abundant polymer only after cellulose. Therefore, the objective of the present project was to obtain activated carbon from shrimp exoskeleton residues to remove azo compounds from water samples. For the experimental part, H3PO4 was used as an activating agent at 20 %, 30 % and 40 %, of concentration, additionally the carbonaceous volume-matter ratio was evaluated. The samples to be treated were solutions of methylene blue at 1000 ppm, in this way adsorption isotherms and kinetics were obtained respect to time and the amount of CA used. The best methylene blue removal percentage obtained was 90.59 % with activated carbon at 20 % of H3PO4, while the physicochemical parameters evaluated in the water samples to be treated showed no significant differences.
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Copyright (c) 2019 Verónica López Hernández, Oscar Enrique Morales Moguel, Arsenio Sosa Fomperosa, Raúl Alejandro Hernández Limón e Iriana Hernández Martínez
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